docs: update roadmap doc and alerting doc for traces

Author: jiekun

docs/victoriatraces/roadmap.md

@@ -16,8 +16,6 @@ aliases:
 The following items need to be completed before general availability (GA) version:
 - [ ] Finalize the data structure and commit to backward compatibility.
 - [ ] Finalize the data distribution algorithm in the cluster version.
-- [ ] Provide monitoring and alerting rules for VictoriaTraces single-node and cluster version.
-- [ ] Provide alerting support on traces data with [vmalert](https://docs.victoriametrics.com/vmalert/).
 
 The following functionality is planned in the future versions of VictoriaTraces after GA:
 - [ ] Provide web UI to visualize traces.

docs/victoriatraces/vmalert.md

@@ -1,6 +1,6 @@
 ---
 weight: 6
-title: vmalert
+title: Alerting with traces
 menu:
   docs:
     parent: "victoriatraces"
@@ -11,6 +11,7 @@ tags:
    - metrics
 aliases:
 - /victoriatraces/vmalert.html
+
 ---
 
 [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/){{% available_from "v1.106.0" %}} integrates with VictoriaTraces via stats APIs [`/select/logsql/stats_query`](https://docs.victoriametrics.com/victorialogs/querying/#querying-log-stats)